398672306615 has 8 divisors (see below), whose sum is σ = 521898292368. Its totient is φ = 289943495680.

The previous prime is 398672306611. The next prime is 398672306623. The reversal of 398672306615 is 516603276893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 398672306615 - 2² = 398672306611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398672306611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3624293642 + ... + 3624293751.

It is an arithmetic number, because the mean of its divisors is an integer number (65237286546).

Almost surely, 2^398672306615 is an apocalyptic number.

398672306615 is a deficient number, since it is larger than the sum of its proper divisors (123225985753).

398672306615 is a wasteful number, since it uses less digits than its factorization.

398672306615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248587409.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 398672306615 in words is "three hundred ninety-eight billion, six hundred seventy-two million, three hundred six thousand, six hundred fifteen".